Cobalt Containing Polyimide Films Treated by Nanosecond Pulsed Electrical Discharges in Water

Camelia Miron, Jie Zhuang, Michal Balcerak, Marcin Holub, Angela Kruth, Antje Quade, Ion Sava, Klaus DIeter Weltmann, Juergen F. Kolb

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper describes the effect of nanosecond pulsed electrical discharges generated in distilled water on cobalt-modified fluorinated polyimide (PI) films derived from hexafluoroisopropylidendiphthalic dianhydride and 4,4'-diamino-3,3'-dimethyl diphenylmethane. The PI films have been characterized by dielectric spectroscopy, X-ray photoelectron spectroscopy, and X-ray diffraction (XRD) measurements. The relative permittivity of the PI films increased after treatment by water plasma. The XRD analysis has shown a slight increase of the degree of intermolecular ordering and stronger π-π interactions with the increase of the plasma treatment time. Application of nanosecond high-voltage pulses has induced an increase in concentration of CF3 groups at the polymer surface. A decrease of the cobalt and chlorine fractions, due to their migration into water, and an increase of aliphatic C-C bonds at the film surface may be responsible for the relative permittivity modification after exposure to water plasma.

Original languageEnglish
Pages (from-to)2708-2714
Number of pages7
JournalIEEE Transactions on Plasma Science
Volume44
Issue number11
DOIs
Publication statusPublished - 2016 Nov 1
Externally publishedYes

Fingerprint

polyimides
cobalt
water
permittivity
x rays
diffraction
chlorine
high voltages
photoelectron spectroscopy
polymers
pulses
spectroscopy

Keywords

  • Dielectric spectroscopy
  • plasma in liquids
  • polyimide (PI) films

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Cobalt Containing Polyimide Films Treated by Nanosecond Pulsed Electrical Discharges in Water. / Miron, Camelia; Zhuang, Jie; Balcerak, Michal; Holub, Marcin; Kruth, Angela; Quade, Antje; Sava, Ion; Weltmann, Klaus DIeter; Kolb, Juergen F.

In: IEEE Transactions on Plasma Science, Vol. 44, No. 11, 01.11.2016, p. 2708-2714.

Research output: Contribution to journalArticle

Miron, C, Zhuang, J, Balcerak, M, Holub, M, Kruth, A, Quade, A, Sava, I, Weltmann, KDI & Kolb, JF 2016, 'Cobalt Containing Polyimide Films Treated by Nanosecond Pulsed Electrical Discharges in Water', IEEE Transactions on Plasma Science, vol. 44, no. 11, pp. 2708-2714. https://doi.org/10.1109/TPS.2016.2600280
Miron, Camelia ; Zhuang, Jie ; Balcerak, Michal ; Holub, Marcin ; Kruth, Angela ; Quade, Antje ; Sava, Ion ; Weltmann, Klaus DIeter ; Kolb, Juergen F. / Cobalt Containing Polyimide Films Treated by Nanosecond Pulsed Electrical Discharges in Water. In: IEEE Transactions on Plasma Science. 2016 ; Vol. 44, No. 11. pp. 2708-2714.
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